*
* $Id$
*
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
#include <string.h>
#include <ctype.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h> /* needed to define AF_ values on UNIX */
+#endif
+
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h> /* needed to define AF_ values on Windows */
+#endif
+
+#ifdef NEED_INET_V6DEFS_H
+# include "inet_v6defs.h"
+#endif
+
#include <glib.h>
#include <epan/packet.h>
-#include "capture.h"
#include "capture_opts.h"
#include "ringbuffer.h"
#include "clopts_common.h"
#include "capture-pcap-util.h"
#include <wiretap/file_util.h>
+typedef struct {
+ char *name;
+ pcap_t *pch;
+} if_stat_t;
static gboolean capture_opts_output_to_pipe(const char *save_file, gboolean *is_pipe);
void
capture_opts_init(capture_options *capture_opts, void *cfile)
{
- capture_opts->cf = cfile;
+ capture_opts->cf = cfile;
capture_opts->cfilter = g_strdup(""); /* No capture filter string specified */
capture_opts->iface = NULL; /* Default is "pick the first interface" */
+ capture_opts->iface_descr = NULL;
+#ifdef HAVE_PCAP_REMOTE
+ capture_opts->src_type = CAPTURE_IFLOCAL;
+ capture_opts->remote_host = NULL;
+ capture_opts->remote_port = NULL;
+ capture_opts->auth_type = CAPTURE_AUTH_NULL;
+ capture_opts->auth_username = NULL;
+ capture_opts->auth_password = NULL;
+ capture_opts->datatx_udp = FALSE;
+ capture_opts->nocap_rpcap = TRUE;
+ capture_opts->nocap_local = FALSE;
+#ifdef HAVE_PCAP_SETSAMPLING
+ capture_opts->sampling_method = CAPTURE_SAMP_NONE;
+ capture_opts->sampling_param = 0;
+#endif
+#endif
#ifdef _WIN32
capture_opts->buffer_size = 1; /* 1 MB */
#endif
capture_opts->has_autostop_files = FALSE;
capture_opts->autostop_files = 1;
- capture_opts->has_autostop_packets = FALSE;
+ capture_opts->has_autostop_packets = FALSE;
capture_opts->autostop_packets = 0;
capture_opts->has_autostop_filesize = FALSE;
capture_opts->autostop_filesize = 1024; /* 1 MB */
#endif
capture_opts->state = CAPTURE_STOPPED;
capture_opts->output_to_pipe = FALSE;
+#ifndef _WIN32
+ capture_opts->owner = getuid();
+ capture_opts->group = getgid();
+#endif
}
g_log(log_domain, log_level, "CFile : 0x%p", capture_opts->cf);
g_log(log_domain, log_level, "Filter : %s", capture_opts->cfilter);
g_log(log_domain, log_level, "Interface : %s", capture_opts->iface);
+ /* iface_descr may not been filled in and some C Libraries hate a null ptr for %s */
+ g_log(log_domain, log_level, "Interface Descr : %s",
+ capture_opts->iface_descr ? capture_opts->iface_descr : "<null>");
+#ifdef HAVE_PCAP_REMOTE
+ g_log(log_domain, log_level, "Capture source : %s",
+ capture_opts->src_type == CAPTURE_IFLOCAL ? "Local interface" :
+ capture_opts->src_type == CAPTURE_IFREMOTE ? "Remote interface" :
+ "Unknown");
+ if (capture_opts->src_type == CAPTURE_IFREMOTE) {
+ g_log(log_domain, log_level, "Remote host : %s", capture_opts->remote_host);
+ g_log(log_domain, log_level, "Remote port : %u", capture_opts->remote_port);
+ }
+ g_log(log_domain, log_level, "Authentication : %s",
+ capture_opts->auth_type == CAPTURE_AUTH_NULL ? "Null" :
+ capture_opts->auth_type == CAPTURE_AUTH_PWD ? "By username/password" :
+ "Unknown");
+ if (capture_opts->auth_type == CAPTURE_AUTH_PWD) {
+ g_log(log_domain, log_level, "Auth username : %s", capture_opts->auth_password);
+ g_log(log_domain, log_level, "Auth password : <hidden>");
+ }
+ g_log(log_domain, log_level, "UDP data transfer : %u", capture_opts->datatx_udp);
+ g_log(log_domain, log_level, "No capture RPCAP : %u", capture_opts->nocap_rpcap);
+ g_log(log_domain, log_level, "No capture local : %u", capture_opts->nocap_local);
+#endif
#ifdef _WIN32
g_log(log_domain, log_level, "BufferSize : %u (MB)", capture_opts->buffer_size);
#endif
return TRUE;
}
+#ifdef HAVE_PCAP_SETSAMPLING
+/*
+ * Given a string of the form "<sampling type>:<value>", as might appear
+ * as an argument to a "-m" option, parse it and set the arguments in
+ * question. Return an indication of whether it succeeded or failed
+ * in some fashion.
+ */
+static gboolean
+get_sampling_arguments(capture_options *capture_opts, const char *arg)
+{
+ gchar *p = NULL, *colonp;
+
+ colonp = strchr(arg, ':');
+ if (colonp == NULL)
+ return FALSE;
+
+ p = colonp;
+ *p++ = '\0';
+
+ while (isspace((guchar)*p))
+ p++;
+ if (*p == '\0') {
+ *colonp = ':';
+ return FALSE;
+ }
+
+ if (strcmp(arg, "count") == 0) {
+ capture_opts->sampling_method = CAPTURE_SAMP_BY_COUNT;
+ capture_opts->sampling_param = get_positive_int(p, "sampling count");
+ } else if (strcmp(arg, "timer") == 0) {
+ capture_opts->sampling_method = CAPTURE_SAMP_BY_TIMER;
+ capture_opts->sampling_param = get_positive_int(p, "sampling timer");
+ }
+ *colonp = ':';
+ return TRUE;
+}
+#endif
+
+#ifdef HAVE_PCAP_REMOTE
+/*
+ * Given a string of the form "<username>:<password>", as might appear
+ * as an argument to a "-A" option, parse it and set the arguments in
+ * question. Return an indication of whether it succeeded or failed
+ * in some fashion.
+ */
+static gboolean
+get_auth_arguments(capture_options *capture_opts, const char *arg)
+{
+ gchar *p = NULL, *colonp;
+
+ colonp = strchr(arg, ':');
+ if (colonp == NULL)
+ return FALSE;
+
+ p = colonp;
+ *p++ = '\0';
+
+ while (isspace((guchar)*p))
+ p++;
+
+ capture_opts->auth_type = CAPTURE_AUTH_PWD;
+ capture_opts->auth_username = g_strdup(arg);
+ capture_opts->auth_password = g_strdup(p);
+ *colonp = ':';
+ return TRUE;
+}
+#endif
static int
capture_opts_add_iface_opt(capture_options *capture_opts, const char *optarg)
GList *if_list;
if_info_t *if_info;
int err;
- gchar err_str[CAPTURE_PCAP_ERRBUF_SIZE];
- gchar *cant_get_if_list_errstr;
+ gchar *err_str;
/*
* If the argument is a number, treat it as an index into the list
- * of adapters, as printed by "tethereal -D".
+ * of adapters, as printed by "tshark -D".
*
* This should be OK on UNIX systems, as interfaces shouldn't have
* names that begin with digits. It can be useful on Windows, where
return 1;
}
if (adapter_index == 0) {
- cmdarg_err("there is no interface with that adapter index");
+ cmdarg_err("There is no interface with that adapter index");
return 1;
}
- if_list = get_interface_list(&err, err_str);
+ if_list = get_interface_list(&err, &err_str);
if (if_list == NULL) {
switch (err) {
case CANT_GET_INTERFACE_LIST:
- cant_get_if_list_errstr =
- cant_get_if_list_error_message(err_str);
- cmdarg_err("%s", cant_get_if_list_errstr);
- g_free(cant_get_if_list_errstr);
+ cmdarg_err("%s", err_str);
+ g_free(err_str);
break;
case NO_INTERFACES_FOUND:
}
if_info = g_list_nth_data(if_list, adapter_index - 1);
if (if_info == NULL) {
- cmdarg_err("there is no interface with that adapter index");
+ cmdarg_err("There is no interface with that adapter index");
return 1;
}
capture_opts->iface = g_strdup(if_info->name);
+ /* We don't set iface_descr here because doing so requires
+ * capture_ui_utils.c which requires epan/prefs.c which is
+ * probably a bit too much dependency for here...
+ */
free_interface_list(if_list);
} else {
capture_opts->iface = g_strdup(optarg);
return 1;
}
break;
+#ifdef HAVE_PCAP_REMOTE
+ case 'A':
+ if (get_auth_arguments(capture_opts, optarg) == FALSE) {
+ cmdarg_err("Invalid or unknown -A arg \"%s\"", optarg);
+ return 1;
+ }
+ break;
+#endif
case 'b': /* Ringbuffer option */
capture_opts->multi_files_on = TRUE;
if (get_ring_arguments(capture_opts, optarg) == FALSE) {
capture_opts->autostop_packets = get_positive_int(optarg, "packet count");
break;
case 'f': /* capture filter */
- if (capture_opts->cfilter)
- g_free(capture_opts->cfilter);
+ if (capture_opts->has_cfilter) {
+ cmdarg_err("More than one -f argument specified");
+ return 1;
+ }
+ capture_opts->has_cfilter = TRUE;
+ g_free(capture_opts->cfilter);
capture_opts->cfilter = g_strdup(optarg);
break;
case 'H': /* Hide capture info dialog box */
*start_capture = TRUE;
break;
/*case 'l':*/ /* Automatic scrolling in live capture mode */
+#ifdef HAVE_PCAP_SETSAMPLING
+ case 'm':
+ if (get_sampling_arguments(capture_opts, optarg) == FALSE) {
+ cmdarg_err("Invalid or unknown -m arg \"%s\"", optarg);
+ return 1;
+ }
+ break;
+#endif
case 'p': /* Don't capture in promiscuous mode */
capture_opts->promisc_mode = FALSE;
break;
capture_opts->quit_after_cap = TRUE;
*start_capture = TRUE; /*** -Q implies -k !! ***/
break;
+#ifdef HAVE_PCAP_REMOTE
+ case 'r':
+ capture_opts->nocap_rpcap = FALSE;
+ break;
+#endif
case 's': /* Set the snapshot (capture) length */
capture_opts->has_snaplen = TRUE;
capture_opts->snaplen = get_positive_int(optarg, "snapshot length");
case 'S': /* "Real-Time" mode: used for following file ala tail -f */
capture_opts->real_time_mode = TRUE;
break;
+#ifdef HAVE_PCAP_REMOTE
+ case 'u':
+ capture_opts->datatx_udp = TRUE;
+ break;
+#endif
case 'w': /* Write to capture file x */
capture_opts->saving_to_file = TRUE;
-#if defined _WIN32 && (GLIB_MAJOR_VERSION > 2 || (GLIB_MAJOR_VERSION == 2 && GLIB_MINOR_VERSION >= 6))
+ g_free(capture_opts->save_file);
+#if defined _WIN32 && GLIB_CHECK_VERSION(2,6,0)
/* since GLib 2.6, we need to convert filenames to utf8 for Win32 */
capture_opts->save_file = g_locale_to_utf8(optarg, -1, NULL, NULL, NULL);
#else
#endif
status = capture_opts_output_to_pipe(capture_opts->save_file, &capture_opts->output_to_pipe);
return status;
- break;
case 'y': /* Set the pcap data link type */
#ifdef HAVE_PCAP_DATALINK_NAME_TO_VAL
capture_opts->linktype = linktype_name_to_val(optarg);
return 0;
}
-
-int capture_opts_list_link_layer_types(capture_options *capture_opts)
+/*
+ * If you change the output format of this function, you MUST update
+ * capture_sync.c:sync_linktype_list_open() accordingly!
+ */
+int
+capture_opts_list_link_layer_types(capture_options *capture_opts, gboolean machine_readable)
{
- gchar err_str[CAPTURE_PCAP_ERRBUF_SIZE];
+ gchar *err_str, *desc_str;
GList *lt_list, *lt_entry;
data_link_info_t *data_link_info;
/* Get the list of link-layer types for the capture device. */
- lt_list = get_pcap_linktype_list(capture_opts->iface, err_str);
+ lt_list = get_pcap_linktype_list(capture_opts->iface, &err_str);
if (lt_list == NULL) {
- if (err_str[0] != '\0') {
+ if (err_str != NULL) {
cmdarg_err("The list of data link types for the capture device \"%s\" could not be obtained (%s)."
"Please check to make sure you have sufficient permissions, and that\n"
"you have the proper interface or pipe specified.\n", capture_opts->iface, err_str);
+ g_free(err_str);
} else
cmdarg_err("The capture device \"%s\" has no data link types.", capture_opts->iface);
return 2;
}
- cmdarg_err_cont("Data link types (use option -y to set):");
- for (lt_entry = lt_list; lt_entry != NULL;
- lt_entry = g_list_next(lt_entry)) {
- data_link_info = lt_entry->data;
- cmdarg_err_cont(" %s", data_link_info->name);
- if (data_link_info->description != NULL)
- cmdarg_err_cont(" (%s)", data_link_info->description);
- else
- cmdarg_err_cont(" (not supported)");
- putchar('\n');
+ if (machine_readable) { /* tab-separated values to stdout */
+ for (lt_entry = lt_list; lt_entry != NULL; lt_entry = g_list_next(lt_entry)) {
+ data_link_info = lt_entry->data;
+ if (data_link_info->description != NULL)
+ desc_str = data_link_info->description;
+ else
+ desc_str = "(not supported)";
+ printf("%d\t%s\t%s\n", data_link_info->dlt, data_link_info->name,
+ desc_str);
+ }
+ } else {
+ cmdarg_err_cont("Data link types (use option -y to set):");
+ for (lt_entry = lt_list; lt_entry != NULL;
+ lt_entry = g_list_next(lt_entry)) {
+ data_link_info = lt_entry->data;
+ cmdarg_err_cont(" %s", data_link_info->name);
+ if (data_link_info->description != NULL)
+ cmdarg_err_cont(" (%s)", data_link_info->description);
+ else
+ cmdarg_err_cont(" (not supported)");
+ putchar('\n');
+ }
}
free_pcap_linktype_list(lt_list);
return 0;
}
-
-int capture_opts_list_interfaces()
+/* Return an ASCII-formatted list of interfaces. */
+#define ADDRSTRLEN 46 /* Covers IPv4 & IPv6 */
+int
+capture_opts_list_interfaces(gboolean machine_readable)
{
GList *if_list;
GList *if_entry;
if_info_t *if_info;
int err;
- gchar err_str[CAPTURE_PCAP_ERRBUF_SIZE];
- gchar *cant_get_if_list_errstr;
+ gchar *err_str;
int i;
-#if 0
GSList *ip_addr;
if_addr_t *if_addr;
- guint8 ipv4[4];
-#endif
+ char addr_str[ADDRSTRLEN];
-
- if_list = get_interface_list(&err, err_str);
+ if_list = get_interface_list(&err, &err_str);
if (if_list == NULL) {
switch (err) {
case CANT_GET_INTERFACE_LIST:
- cant_get_if_list_errstr = cant_get_if_list_error_message(err_str);
- cmdarg_err("%s", cant_get_if_list_errstr);
- g_free(cant_get_if_list_errstr);
+ cmdarg_err("%s", err_str);
+ g_free(err_str);
break;
case NO_INTERFACES_FOUND:
cmdarg_err("There are no interfaces on which a capture can be done");
break;
}
- return 2;
+ return err;
}
i = 1; /* Interface id number */
if_entry = g_list_next(if_entry)) {
if_info = if_entry->data;
printf("%d. %s", i++, if_info->name);
- if (if_info->description != NULL)
- printf(" (%s)", if_info->description);
-#if 0
- for(ip_addr = g_slist_nth(if_info->ip_addr, 0); ip_addr != NULL;
- ip_addr = g_slist_next(ip_addr)) {
- if_addr = ip_addr->data;
- switch(if_addr->type) {
- case AT_IPv4:
- memcpy(ipv4, (void *) &if_addr->ip_addr.ip4_addr, 4);
- printf(" %u.%u.%u.%u", ipv4[0], ipv4[1], ipv4[2], ipv4[3]);
- break;
- case AT_IPv6:
- /* XXX - display the IPv6 address without using stuff from epan */
- printf(" XXX-IPv6");
- break;
- default:
- printf(" unknown address type %u", if_addr->type);
+
+ if (!machine_readable) {
+ /* Add the description if it exists */
+ if (if_info->description != NULL)
+ printf(" (%s)", if_info->description);
+ } else {
+ /*
+ * Add the contents of the if_entry struct in a parseable format.
+ * Each if_entry element is tab-separated. Addresses are comma-
+ * separated.
+ */
+ /* XXX - Make sure our description doesn't contain a tab */
+ if (if_info->description != NULL)
+ printf("\t%s\t", if_info->description);
+ else
+ printf("\t\t");
+
+ for(ip_addr = g_slist_nth(if_info->ip_addr, 0); ip_addr != NULL;
+ ip_addr = g_slist_next(ip_addr)) {
+ if (ip_addr != g_slist_nth(if_info->ip_addr, 0))
+ printf(",");
+
+ if_addr = ip_addr->data;
+ switch(if_addr->type) {
+ case AT_IPv4:
+ if (inet_ntop(AF_INET, &if_addr->ip_addr.ip4_addr, addr_str,
+ ADDRSTRLEN)) {
+ printf(addr_str);
+ } else {
+ printf("<unknown IPv4>");
+ }
+ break;
+ case AT_IPv6:
+ if (inet_ntop(AF_INET6, &if_addr->ip_addr.ip6_addr,
+ addr_str, ADDRSTRLEN)) {
+ printf(addr_str);
+ } else {
+ printf("<unknown IPv6>");
+ }
+ break;
+ default:
+ printf("<type unknown %u>", if_addr->type);
+ }
}
+
+ if (if_info->loopback)
+ printf("\tloopback");
+ else
+ printf("\tnetwork");
+
}
+ printf("\n");
+ }
+ free_interface_list(if_list);
+
+ return 0;
+}
+
+/* Print the number of packets captured for each interface until we're killed. */
+int
+capture_opts_print_statistics(gboolean machine_readable)
+{
+ GList *if_list, *if_entry, *stat_list = NULL, *stat_entry;
+ if_info_t *if_info;
+ if_stat_t *if_stat;
+ int err;
+ gchar *err_str;
+ pcap_t *pch;
+ char errbuf[PCAP_ERRBUF_SIZE];
+ struct pcap_stat ps;
+
+ if_list = get_interface_list(&err, &err_str);
+ if (if_list == NULL) {
+ switch (err) {
+ case CANT_GET_INTERFACE_LIST:
+ cmdarg_err("%s", err_str);
+ g_free(err_str);
+ break;
+
+ case NO_INTERFACES_FOUND:
+ cmdarg_err("There are no interfaces on which a capture can be done");
+ break;
+ }
+ return err;
+ }
+
+ for (if_entry = g_list_first(if_list); if_entry != NULL; if_entry = g_list_next(if_entry)) {
+ if_info = if_entry->data;
+#ifdef HAVE_PCAP_OPEN
+ pch = pcap_open(if_info->name, MIN_PACKET_SIZE, 0, 0, NULL, errbuf);
+#else
+ pch = pcap_open_live(if_info->name, MIN_PACKET_SIZE, 0, 0, errbuf);
+#endif
+
+ if (pch) {
+ if_stat = g_malloc(sizeof(if_stat_t));
+ if_stat->name = g_strdup(if_info->name);
+ if_stat->pch = pch;
+ stat_list = g_list_append(stat_list, if_stat);
+ }
+ }
+
+ if (!stat_list) {
+ cmdarg_err("There are no interfaces on which a capture can be done");
+ return 2;
+ }
+
+ if (!machine_readable) {
+ printf("%-15s %10s %10s\n", "Interface", "Received",
+ "Dropped");
+ }
+
+ while (1) { /* XXX - Add signal handling? */
+ for (stat_entry = g_list_first(stat_list); stat_entry != NULL; stat_entry = g_list_next(stat_entry)) {
+ if_stat = stat_entry->data;
+ pcap_stats(if_stat->pch, &ps);
+
+ if (!machine_readable) {
+ printf("%-15s %10d %10d\n", if_stat->name,
+ ps.ps_recv, ps.ps_drop);
+ } else {
+ printf("%s\t%d\t%d\n", if_stat->name,
+ ps.ps_recv, ps.ps_drop);
+ fflush(stdout);
+ }
+ }
+#ifdef _WIN32
+ Sleep(1 * 1000);
+#else
+ sleep(1);
#endif
+ }
- printf("\n");
+ /* XXX - Not reached. Should we look for 'q' in stdin? */
+ for (stat_entry = g_list_first(stat_list); stat_entry != NULL; stat_entry = g_list_next(stat_entry)) {
+ if_stat = stat_entry->data;
+ pcap_close(if_stat->pch);
+ g_free(if_stat->name);
+ g_free(if_stat);
}
+ g_list_free(stat_list);
free_interface_list(if_list);
return 0;
GList *if_list;
if_info_t *if_info;
int err;
- gchar err_str[CAPTURE_PCAP_ERRBUF_SIZE];
- gchar *cant_get_if_list_errstr;
+ gchar *err_str;
/* Did the user specify an interface to use? */
if (capture_device != NULL) {
/* Yes - use it. */
capture_opts->iface = g_strdup(capture_device);
+ /* We don't set iface_descr here because doing so requires
+ * capture_ui_utils.c which requires epan/prefs.c which is
+ * probably a bit too much dependency for here...
+ */
} else {
/* No - pick the first one from the list of interfaces. */
- if_list = get_interface_list(&err, err_str);
+ if_list = get_interface_list(&err, &err_str);
if (if_list == NULL) {
switch (err) {
case CANT_GET_INTERFACE_LIST:
- cant_get_if_list_errstr = cant_get_if_list_error_message(err_str);
- cmdarg_err("%s", cant_get_if_list_errstr);
- g_free(cant_get_if_list_errstr);
+ cmdarg_err("%s", err_str);
+ g_free(err_str);
break;
case NO_INTERFACES_FOUND:
}
if_info = if_list->data; /* first interface */
capture_opts->iface = g_strdup(if_info->name);
+ /* We don't set iface_descr here because doing so requires
+ * capture_ui_utils.c which requires epan/prefs.c which is
+ * probably a bit too much dependency for here...
+ */
free_interface_list(if_list);
}
}
{
int err;
+ *is_pipe = FALSE;
+
if (save_file != NULL) {
/* We're writing to a capture file. */
if (strcmp(save_file, "-") == 0) {
Least Astonishment. */
*is_pipe = TRUE;
} else {
- /* not a capture file, test for a FIFO (aka named pipe) */
+ /* not writing to stdout, test for a FIFO (aka named pipe) */
err = capture_opts_test_for_fifo(save_file);
switch (err) {
*is_pipe = TRUE;
break;
- default: /* couldn't stat it */
- cmdarg_err("Error testing whether capture file is a pipe: %s",
- strerror(errno));
- return 2;
+ default: /* couldn't stat it */
+ break; /* ignore: later attempt to open */
+ /* will generate a nice msg */
}
}
}
- *is_pipe = FALSE;
-
return 0;
}
git.samba.org / obnox / wireshark / wip.git / blobdiff